Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法对落单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本落苗，合作用能力强，不发生抑制，而兴安落苗耐阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利接枝共聚和磺烷基化的方法对落叶松单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本落叶松幼苗较喜光，光合作较强，不发生光，兴安落叶松幼苗较耐阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法松单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本松幼苗较喜光，光合作用能力较强，不发生光抑制，而兴安松幼苗较耐阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法对落叶松单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本落叶松幼苗较喜光，光合作用能力较强，不发生光抑制，而兴安落叶松幼苗较耐阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法对叶松单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

叶松幼苗较喜光，光合作用能力较强，不发生光抑制，而兴安叶松幼苗较耐阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法对落叶松单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本落叶松幼苗较喜光，光合作用能力较强，不发生光抑制，而兴安落叶松幼苗较耐阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法对落叶单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本落叶喜光，光合作用能力强，不发生光抑制，而兴安落叶阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法对落叶松单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本落叶松幼苗喜，合作用能，不发制，而兴安落叶松幼苗耐阴。

Modified larch tannin was prepared by grafting copolymerization and sulfoalkylation, and successfully used as retanning agent, possessing good water solubility and enhanced penetration rate.

利用接枝共聚和磺烷基化的方法对落叶松单宁改性。

Larix kaempferi Carr. seedlings were more photophilic and had strong photosynthetic capacity, which were not prone to photoinhibition,while Larix gmelinii Rupr. seedlings were more shade-tolerant.

日本落叶松幼苗较喜光，光合作用能力较强，发生光抑制，而兴安落叶松幼苗较耐阴。