The first KamLAND results are in a very good agreement with the predictions made on the basis of the solar neutrino data and the LMA realization of the MSW mechanism .
We perform a combined analysis of the KamLAND ( rate , spectrum ) and the solar neutrino data with a free boron neutrino flux f _ { B } .
The best fit values of neutrino parameters are \Delta m ^ { 2 } = 7.3 \cdot 10 ^ { -5 } eV ^ { 2 } , \tan ^ { 2 } \theta = 0.41 and f _ { B } = 1.05 with the 1 \sigma intervals : \Delta m ^ { 2 } = ( 6.2 - 8.4 ) \cdot 10 ^ { -5 } eV ^ { 2 } , \tan ^ { 2 } \theta = 0.33 - 0.54 .
We find the 3 \sigma upper bounds : \Delta m ^ { 2 } < 2.8 \cdot 10 ^ { -4 } eV ^ { 2 } and \tan ^ { 2 } \theta < 0.84 , and the lower bound \Delta m ^ { 2 } > 4 \cdot 10 ^ { -5 } eV ^ { 2 } .
At 99 % C.L .
the KamLAND spectral result splits the LMA region into two parts with the preferred one at \Delta m ^ { 2 } < 10 ^ { -4 } eV ^ { 2 } .
The higher \Delta m ^ { 2 } region is accepted at about 2 \sigma level .
We show that effects of non-zero 13-mixing , \sin ^ { 2 } \theta _ { 13 } \leq 0.04 , are small leading to a slight improvement of the fit in higher \Delta m ^ { 2 } region .
In the best fit point we predict for SNO : CC/NC = 0.33 ^ { +0.05 } _ { -0.03 } and A _ { DN } ^ { SNO } = 2.8 \pm 0.8 \% ( 68 % C.L .
) , and A _ { DN } ^ { SNO } < 9 \% at the 3 \sigma level .
Further improvements in the determination of the oscillation parameters are discussed and implications of the solar neutrino and KamLAND results are considered .